Network virtualization start (FR)

Perfecto Command

mobile:vnetwork:start

Purpose

Starts network virtualization for the device with the specified conditions. Network virtualization will be stopped when the script ends.

For network condition testing, the device used is connected to the Web via Perfecto WiFi. Setup is completed by Perfecto.

Use the Network virtualization start and update commands to activate and update the network conditions. Without this activation, there is no effect on the device communication to the web.

Selecting latency effects both in and out traffic. For example, selecting latency of 100 results in the actual latency being 200 (100 each way).

For typical network emulation values, see Network conditions for network virtualization.

The following table lists emulation values of problematic networks.

Problematic Level	Packet loss (%)	Corruption (%)	Duplication(%)	Reorder
Steady Network	1	0	0	2
Noisy Network	2	2	0	5
Unstable Network	3	3	2	10
Very Unstable Network	5	5	5	20

Parameters

Name	Type	Possible Values	Description
latency	Integer	0-8000ms	Latency applied on packets in the Network.
packetLoss	Integer	0-100%	Network packet loss.. A reasonable packet loss value should not exceed 5%.
bandwidth.in	Integer		Limitation on the allowed download network bandwidth into the device. Effective values are in the range of 3-100,000 Kbps, or unlimited.
bandwidth.out	Integer		Limitation on the allowed upload network bandwidth from the device. Effective values are in the range of 3-100,000 Kbps, or unlimited.
packetCorruption	Integer	0-100%	Network packet corruption. A reasonable packet corruption value should not exceed 5%.
packetReordering	Integer	0-100%	The percentage of network packets sent immediately without any delay. Used alongside the Latency parameter. Moreover, the packets that are sent immediately will arrive earlier than the packets that were delayed by the defined latency value, essentially creating a packet reordering. A reasonable packet reordering value should not exceed 10%.
packetDuplication	Integer	0-100%	Network packets duplicated.. A reasonable packet duplication value should not exceed 3%.
delayJitter	Integer	0-8000ms	Random latency variation; the actual latency between latency +- jitter. Used alongside the Latency parameter. For example, if the latency is defined to be 100 ms and the jitter is 10 ms, this causes the added delay to be 100ms - 10ms.
correlation	Integer	0-100%	Network packet value correlation, affecting the Latency, Corruption, Reordering and Duplication. For Latency, Corruption, Reordering and Duplication, the current packet n value will be correlated by this % to previous packet n-1 value. In other words, the current packet value is correlated to the previous packet value. For example, if the correlation is defined to be 25%, the packet loss is 5%, and the previous packet was lost, then the updated packet loss value (for the current packet) would be 75% * 5% + 25%, which equals 28.75%. However, if the previous packet was not lost, then the packet loss value would be 75% * 5%, which equals 3.75%.
generateHarFile	String	False	Indicates if a HTTP Archive (HAR) file should be generated to analyze the traffic of the virtual network.
blockedDestinations	String		Network packet block, to specific destinations, defined by domain name, IP address, and IP range destinations in IP Prefix (Slash) notation. Examples: Domain name: www.google.com IP address: 192.168.2.0 IP range destination: 192.168.2.0/24 To remove a network packet block, prefix the value with a '-'. For example, -www.google.com.
blockedPorts	String		Network packet block, to specific ports. For example, to block http, define port number 80. To remove a network packet block, prefix the value with a '-'. For example, -80.
profile	String	2g_gprs_good \| 2g_gprs_average \| 2g_gprs_poor \| 2g_edge_good \| 2g_edge_average \| 2g_edge_poor \| 3g_umts_good \| 3g_umts_average \| 3g_umts_poor \| 3.5g_hspa_good \| 3.5g_hspa_average \| 3.5g_hspa_poor \| 3.5g_hspa_plus_good \| 3.5g_hspa_plus_average \| 3.5g_hspa_plus_poor \| 4g_lte_good \| 4g_lte_average \| 4g_lte_poor \| 4g_lte_advanced_good \| 4g_lte_advanced_average \| 4g_lte_advanced_poor \| bandwidth_good	Suggested network virtualization profiles. See the Suggested Profiles table, in the description section above, for the defined emulation values. Note: Specifying additional network virtualization parameters will override their values in the suggested profile.

Return Value

None

Exceptions

None

Examples

Copy

Java sample

Map<String, Object> pars = new HashMap<>();
pars.put("generateHarFile", "true");
driver.executeScript("mobile:vnetwork:start", pars);

Copy

C# sample

Dictionary<String, Object> pars = new Dictionary<String, Object>();
pars.Add("profile", "3.5g_hspa_plus_good");
driver.ExecuteScript("mobile:vnetwork:start", pars);